Feature: Twitter DM Integration (#451)

An initial version of twitter integration

Co-authored-by: Sojan Jose <sojan@pepalo.com>

db/migrate/20200124190208_create_channel_twitter_profiles.rb

@@ -0,0 +1,12 @@
+class CreateChannelTwitterProfiles < ActiveRecord::Migration[6.0]
+  def change
+    create_table :channel_twitter_profiles do |t|
+      t.string :name
+      t.string :profile_id, null: false
+      t.string :twitter_access_token, null: false
+      t.string :twitter_access_token_secret, null: false
+      t.integer :account_id, null: false
+      t.timestamps
+    end
+  end
+end